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Finding the Fourth Proportional to 8,651.47, 11,939.07 and 4,874.71

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Solution

The fourth proportional to 8,651.47, 11,939.07 and 4,874.71 is: 6,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.47 : 11,939.07 = 4,874.71 : x
  2. Step 2: Convert to fraction form
    8,651.47/11,939.07 = 4,874.71/x
  3. Step 3: Cross multiply
    8,651.47x = 11,939.07 × 4,874.71
  4. Step 4: Simplify right side
    8,651.47x = 58,199,503.92
  5. Step 5: Solve for x
    x = 58,199,503.92/8,651.47
  6. Step 6: Final answer
    x = 6,727.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.